Opposed Blade Volume Damper 3000-0BD-70X22 Step Down Ceiling Diffuser 3% maximum leakage with a

3% maximum leakage with a pressure differential 3" W

blades prevent metal on metal rattle Countersunk mounting holes with color matching Phillips Pozidriv screws Rust-resistant pre-coat with durable powder finish Soft White Options Screwdriver operated Opposed Blade Damper 2" ADC compliant square to round collar with a bead for ease of installation Heavy Duty Construction MRI Compatible Insect Screen Fractional

Options * 304 stainless steel construction h3

Damper manufactured from corrosion tested galvanized mild steel (G-90)

Square to round 2" collar with roll formed retention bead - available in square sizes only

Opposed Blade Volume Damper 3000-0BD-70X22 Step Down Ceiling Diffuser 3% maximum leakage with ah3. Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3.